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PLATINUM
Advancing low carbon construction through research, education and outreachCARBON LEADERSHIP FORUM
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SUPPORTERS
ADRIAN SMITH + GORDON GILL | ARKIN TILT | CARBON CURE |KATERRA | LUND OPSAHL | NATIONAL READY MIXED CONCRETE CO. | NRMCA | SELLEN | SHKS | SIEGEL & STRAIN ARCHITECTS
ARCHITECTURE 2030 | ATHENA SMI | CASBA | C-CHANGE LABS | COALITION TO PRESERVE LA | CORRIM | ECOLOGICAL BUILDING NETWORK | ENDEAVOUR CENTRE | NET ZERO ENERGY COALITION
DIAMOND
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www.carbonleadershipforum.org/resources/www.embodiedcarbonnetwork.org 4
1950 0
1oC
2000 2200 2150 2100 2050
3oC
2oC
8oC
7oC
6oC
5oC
4oC
Zero Carbon by 2050Incr
ease
in A
vera
ge G
loba
l Tem
pera
ture
IPCC Global Temperature Projection Scenarios
Business-As-Usual
Emissions Peak 2080
Emissions Peak 2040-2050
CARBON LEADERSHIP FORUM
Addressing Climate Change is a Time Critical Issue
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Net Zero = Zero Carbon??Buildings: Total Lifetime Energy Use
High Performance
CARBON LEADERSHIP FORUM
Typical Building
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LIFE CYCLE ASSESSMENT/CARBON ACCOUNTING
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Rebar (Nucor Steel)
EXAMPLE LCA CHALLENGE: UK Steel Material FLOW
©K. Simonen 20139
EXTRACTIONS• Raw materials• Water• Coal/GasEMISSIONS (soil, water, air)• Fuel combustion • Polluted water• Agricultural run-off• Chemical reactions
LCALife Cycle Assessment
CARBON LEADERSHIP FORUM
Standardized (ISO) method of tracking/reporting environmental impacts of a product (eg. flooring or building) over the life cycle.
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OZONE FORMATION (smog)
EUTROPHICATION (well nourished)
Not covered by Type LCA• Land use impacts• Land use change• Local impacts• Habitat
disruption• Water use
(developing)• Human Health
Impacts
CARBON LEADERSHIP FORUM
ACIDIFICTION(Low pH)
OZONE DEPLETION (ozone hole)
NOT JUST CARBON:OTHER ENVIRONMENTAL IMPACTS
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MATERIAL to IMPACTS
ESTIMATE OF QUANTITIES OF MATERIALS IN BUILDING
ESTIMATE OF ENVIRONMNETAL IMPACTS FOR EACH MATERIAL
ESTIMATE OF TOTAL ENV. IMPACT OF BUILDING MATERIALS
Inventory Impacts
e.g. 100kg steel 0.43 kg CO2e /kg steel
43 kg CO2e
e.g. 50kg glass 1.064 kg CO2e /kg steel
53.2 kg CO2e
etc. etc. etc.
Sum Total Impact
Total
CARBON LEADERSHIP FORUM12
Goal: What is the object of study?
Why is this study being performed?
What is the desired outcome?
Who is the audience?
Scope: What is included?
What is excluded?
What are the boundaries of study?
Where is the data coming from?
What impacts will be assessed?
CARBON LEADERSHIP FORUM
LCALife Cycle AssessmentStandardized (ISO) method of tracking/reporting environmental impacts of a product (eg. flooring or building) over the life cycle.
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CARBON LEADERSHIP FORUM
Embodied Carbon Material Breakdown (initial construction)
Structural
Envelope
Interiors:Partitions/Doors/Finishes
Exterior site
Fittings/Appliances/Fixtures
MEP
Elevator/Equipment
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Embodied CO2e over 100 year life
Manufacturing Mfr Transport Const TransportConstruction Use End of Life
CO2e from initial material manufacturing
CO2e from materials refurbishing/ repairing
CO2e from transport and construction
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©K. Simonen 2014
Points for use of products with EPDs-Manufacture specific (20 products/5 mfr)-Industry average (half credit)-No more than 30% from structure/enclosure
Points for demonstrating whole building improvements
-Architecture 2030 Challenge for Products-Push to deliver low carbon products by 2030
-Manufacturer specific-Industry average
AEC Industry Pushing for Increasing Transparency-HBD: Health Product Declaration-Declare: Living Building Challenge Labeling-Responsible Sourcing Certification in LEED etc.
BUILDING INDUSTRY DRIVERS
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Typically less than 1,000kgCO2e/m2 and commonly between 200-500 kgCO2e/m2.
CLF RESEARCH: Embodied Carbon Benchmark http://www.carbonleadershipforum.org/data-visualization/
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Defining a Reference Building
CLF RESEARCH: Environmental Impact of Mass Timber Office Construction
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Figure 8. Effect of number of intermediate beams on volume of beam + slab per SF.
Highlighting impact of configuration
CLF RESEARCH: Environmental Impact of Mass Timber Office Construction
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LCA Practice Guide: Published
• Introduction• Implementation
• Five Steps• Online Resources:
• Technical Guidance• Taxonomy• Links to tools etc.• Examples
Simonen, Huang, Rodriguez& advisory committee!
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LCA Practice Guide: IntroductionEntry Level Concepts
• How do buildings impact the environment?
• What are emissions and why do they matter?
• How are emissions translated into environmental impacts?
• How is LCA used to evaluate buildings?
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www.carbonleadershipforum.org/resources/www.embodiedcarbonnetwork.org 24
